usleep.c

/* Copyright (C) 1992 Free Software Foundation, Inc.This file is part of the GNU C Library.The GNU C Library is free software; you can redistribute it and/ormodify it under the terms of the GNU Library General Public License aspublished by the Free Software Foundation; either version 2 of theLicense, or (at your option) any later version.The GNU C Library is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNULibrary General Public License for more details.You should have received a copy of the GNU Library General PublicLicense along with the GNU C Library; see the file COPYING.LIB. Ifnot, write to the Free Software Foundation, Inc., 675 Mass Ave,Cambridge, MA 02139, USA. */#include <config.h>#ifndef HAVE_USLEEP#include <sys/types.h>#include <sys/time.h>#ifdef HAVE_SYS_SELECT_H# include <sys/select.h>#endif#ifdef HAVE_WINDOWS_H#include <windows.h>#endif#ifdef HAVE_WINBASE_H# include <winbase.h>#endif#ifdef apollo# include <apollo/base.h># include <apollo/time.h>static time_$clock_t DomainTime100mS =
{
0, 100000/4
};
static status_$t DomainStatus;
#endif/* Sleep USECONDS microseconds, or until a previously set timer goes off. */int
usleep (unsignedlong useconds)
{
#ifdef apollo/* The usleep function does not work under the SYS5.3 environment. Use the Domain/OS time_$wait call instead. */
time_$wait (time_$relative, DomainTime100mS, &DomainStatus);
#elif defined(HAVE_SSLEEP) /* Win32 */
Sleep( useconds/1000 );
#elsestruct timeval delay;
delay.tv_sec = 0;
delay.tv_usec = useconds;
select (0, 0, 0, 0, &delay);
#endifreturn 0;
}
#endif /* !HAVE_USLEEP */